Finding the Fourth Proportional to 1,122,434.70, 1,548,901.98 and 613,038.66
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Solution
The fourth proportional to 1,122,434.70, 1,548,901.98 and 613,038.66 is: 845,961.72
Step by Step Solution
- Step 1: Write the proportion equation
1,122,434.70 : 1,548,901.98 = 613,038.66 : x - Step 2: Convert to fraction form
1,122,434.70/1,548,901.98 = 613,038.66/x - Step 3: Cross multiply
1,122,434.70x = 1,548,901.98 × 613,038.66 - Step 4: Simplify right side
1,122,434.70x = 949,536,794,290.55 - Step 5: Solve for x
x = 949,536,794,290.55/1,122,434.70 - Step 6: Final answer
x = 845,961.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.